Integrated block switching P2P shared-file system and method for promoting seed-providing of node thereof

Abstract

The invention provides an integrated block switching P2P shared-file system and a method for promoting the seed-providing of a node thereof. The invention contains a centralized block switching P2P shared-file system. The system comprises a plurality of nodes and a server, wherein start node in the nodes uses key information to encrypt a file block and transmits the key information corresponding to the file block to the server, some node in the nodes establishes point-to-point connection with other nodes through the server, obtains the encrypted file block, and requests an encryption key fromthe server to decrypt the file block and obtain the primary file; and the server is used to return the information of other nodes to each node, maintain the encryption key of the file block, and waitfor some time to return the encryption key to the node after determining that the node completes download. By using the system of the invention, the node can stay in the system for some time to provide seeds for other nodes so as to ensure that a certain number of seed nodes can be maintained in the system and increase the robustness and stability of the system.

Description

technical field [0001] The present invention relates to the technical field of P2P file transmission, and more specifically, the present invention relates to a centralized block exchange P2P file sharing system and a method for prompting nodes to seed. Background technique [0002] The centralized block exchange P2P file sharing system includes servers and nodes (clients), in which the nodes include the initial node (the original node providing the file) and the download node, the server tracks the status information of the node, and establishes a centralized index for the shared files in the system , to release other nodes' information to nodes, so that nodes can establish direct point-to-point connections, breaking through the performance bottleneck of the traditional C / S mode. [0003] figure 1 The work flow of the existing centralized block exchange P2P file sharing system is shown: step 1, when the initial node shares a certain file, first generate a hash value for eac...

AI Technical Summary

Problems solved by technology

However, this mechanism is only applicable to the scenario where the node downloads multiple files. When the node downloads a single file, the mechanism fails

At the same time, this incentive mechanism cannot effectively punish exploiting nodes. In order to save upload bandwidth, nodes can still choose not to seed, and obtain normal speed to download other files

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